Cross-site request forgery in Red Hat etcd
Priority MEDIUM 41CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-352.
Summary
A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.
Why it matters now
EPSS 0.01223 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial go.etcd.io/etcd/v3 (Go): 3.4.0Red Hat: 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Red Hat | etcd | up to 3.3.1 | — | No fix listed | CNA |
| — | go.etcd.io/etcd/v3 (Go) | before 3.4.0 | 3.4.0 | Patch available | GHSA-5gjm-fj42-x983 |
- etcd VendorRed Hat Affected up to 3.3.1 Fixed in — No fix listed CNA
- go.etcd.io/etcd/v3 (Go) Vendor— Affected before 3.4.0 Fixed in 3.4.0 Patch available GHSA-5gjm-fj42-x983
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:etcd:*:*:*:*:*:*:*:* | up to 3.3.1 | Vulnerable | Red Hat |
| cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | 30 | Vulnerable | Fedoraproject |
- cpe:2.3:a:redhat:etcd:*:*:*:*:*:*:*:* Versions up to 3.3.1 Vulnerable ·Red Hat
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
Remediation
- Fix · GHSA-5gjm-fj42-x983 go.etcd.io/etcd/v3 (Go) Fixed in 3.4.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Enterprise 3 | Affected | No fix yet |
| Red Hat Storage 3 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-1098
- 2026-10-03 Alias added: GHSA-5gjm-fj42-x983
References
Advisory 4
Other 5
- https://github.com/coreos/etcd/commit/a7e5790c82039945639798ae9a3289fe787f5e56
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS
- https://lists.fedoraproject.org/archives/list/[email protected]/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS
More Red Hat Etcd vulnerabilities
- TI-2020-11890 No minimum password length in etcd CVSS 3.1HIGH 7.5
- TI-2020-11889 Denial of Service in etcd CVSS 3.1HIGH 7.7
- TI-2020-11909 Improper authentication in etcd CVSS 3.1MEDIUM 6.5
- TI-2018-01018 Improper input validation in Red Hat etcd CVSS 3.0MEDIUM 5.5
Sources
- CVE-2018-1098 · CVE Program
- CVE-2018-1098 · NVD
- FIRST EPSS
- GHSA-5gjm-fj42-x983 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-1098 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences